GIF to ASF converter

A free GIF to ASF converter for Graphics Interchange Format files. Browser-based pairs here usually run in this tab, with no file upload.

Drop your GIF files here

or browse your device · paste with Ctrl+V

Accepts .gif files. You can queue several files; each is processed one after another on your own device.

Your files never leave this device — there is no upload and no server to delete them from.

How to

01
Add your GIF files
Drop them onto the box above or click to browse. They are read straight from disk — nothing is sent anywhere.
02
Check the settings
ASF is already selected. Open the gear icon on any row if you want to change quality, dimensions or codec before converting.
03
Download your ASF
Press convert and wait for the row to finish. Convert several files and you can take them all as a single ZIP.

GIF

Graphics Interchange Format

Limited to 256 colours per frame and technically obsolete for a decade, yet immortal because it animates and autoplays everywhere. For anything longer than a few seconds an MP4 or WebP will look better at a tenth of the size.

Developed by: CompuServe
Released: 1987
Extension: .gif
MIME type: image/gif
Compression: Lossless

ASF

Advanced Systems Format

The Microsoft container that WMV video and WMA audio sit inside. You will normally meet it in old Windows Media streams and recordings.

Developed by: Microsoft
Released: 1996
Extension: .asf
MIME type: video/x-ms-asf
Compression: Lossy

Worth knowing before you convert

GIF is lossless and ASF is lossy. This direction discards some information in the encode step. In practice, many files look identical at default settings, but this is a one-way loss. Keep the GIF source if you might need a perfect copy later.
GIF is the one image format that carries motion, so this becomes a genuine video at the source's original frame timing, not a slideshow assembled from a still.

FAQ

Questions about converting GIF to ASF

Is this GIF to ASF converter free?

Yes. Converting GIF to ASF here is free, with no account, no watermark and no daily quota. The work runs on your own device, so there is no server cost to pass on to you.

Is my GIF file uploaded anywhere?

For browser-based pairs, your file is read locally and converted by ffmpeg in this tab. No file payload is uploaded; you may still see analytics and engine downloads in network logs.

Is there a file-size limit for GIF to ASF?

There is no imposed upload cap when it runs in-browser, but each conversion still depends on your device and browser memory. Large videos are the first practical limit, then memory-heavy documents or images.

Does converting GIF to ASF lose quality?

ASF is a lossy format, so some detail is discarded when it is encoded. At the default quality setting the change is often not visually obvious; keep your original GIF file if you might need it again.

Can I convert several GIF files to ASF at once?

Yes. Drop in several files and each gets its own row; they are processed one after another on your device. You can download them one by one or as one ZIP.

Does GIF to ASF work on a phone, Mac or Chromebook?

Most modern browsers on Windows, macOS, Linux, ChromeOS, Android and iOS work. Very large videos are often more reliable on desktop or a browser with more memory.

Why do some conversions take longer on first run?

The conversion engine has to download first. Small codec bundles are fast, while ffmpeg is commonly 12–30 MB; later conversions of similar type use the cached engine.

I converted a file and the output is blank or unusable. What should I check?

Start over with default settings, then change one option at a time (quality, bitrate, page size, or codec) to isolate what changed behavior. If it keeps failing, retry with a smaller file and confirm the source format matches the pair.

Convert other formats to ASF

21 formats can become ASF here.

Convert GIF to other formats

A GIF file can become any of these.

ASF to GIF

The reverse conversion

GIF to MP4

GIF to JPG

GIF to PDF

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